The suspects plotting the foiled attack targeting a Taylor Swift concert in Vienna were looking to kill “tens of thousands of people,” according to CIA Deputy Director David S Cohen. “They were plotting to kill a huge number, tens of thousands of people at this concert,” Cohen said at an intelligence and national security summit held in Washington on Wednesday. The CIA official also confirmed that the US foreign intelligence service provided information to Austrian authorities to help thwart the attack. US superstar Taylor Swift was scheduled to play three concerts in Vienna as part of her rec…